This started a few weeks ago. The guy that cuts the lawn thought it was because the grass is dry. However, we've been getting heavy rainstorms almost everyday for the past couple of months (central Florida). So I don't think that's it. I really need to figure out if it's a fungus and the best way to quickly stop it because it's heading towards my neighbor's yard.
I'm getting an error message saying my pictures are too big, so I uploaded them to this page. https://s22.photobucket.com/user/monofmi ... ard%20pics You can click on each pic to get a larger view.